debug_utils: Remove unused includes

Quite a bit of these aren't necessary directly within the debug_utils
header and can be removed or included where actually necessary.

src/core/core.h

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <array>
+#include <map>
 #include <memory>
 #include <string>
 #include <thread>